Laws of Exponents dealing with fractions

I have a problem to solve but I am stuck trying to find out how to determine the correct answer. If it was the same variable I would be able to do it but since it's two variables (m and n) I'm not sure how to proceed. I am supposed to re-write it as a single exponent. Please forgive me if the equation format is not using the proper symbols.

Re: Laws of Exponents dealing with fractions

First of all, you don't need to take the power inside the brackets. Treat (m/n)^5 as you would say x^5 for the first few steps, it's only later that you may need to bring it inside (even then you don't need to but it will be easier for you to see)